136503187858 has 16 divisors (see below), whose sum is σ = 209630504664. Its totient is φ = 66642687360.

The previous prime is 136503187841. The next prime is 136503187861. The reversal of 136503187858 is 858781305631.

It can be written as a sum of positive squares in 4 ways, for example, as 94816573929 + 41686613929 = 307923^2 + 204173^2 .

It is a super-3 number, since 3×136503187858³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136503187799 and 136503187808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4066785 + ... + 4100212.

Almost surely, 2^136503187858 is an apocalyptic number.

136503187858 is a deficient number, since it is larger than the sum of its proper divisors (73127316806).

136503187858 is a wasteful number, since it uses less digits than its factorization.

136503187858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8167197.

The product of its (nonzero) digits is 4838400, while the sum is 55.

The spelling of 136503187858 in words is "one hundred thirty-six billion, five hundred three million, one hundred eighty-seven thousand, eight hundred fifty-eight".